JP2020189319A - Steel wall welding method - Google Patents
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- JP2020189319A JP2020189319A JP2019096795A JP2019096795A JP2020189319A JP 2020189319 A JP2020189319 A JP 2020189319A JP 2019096795 A JP2019096795 A JP 2019096795A JP 2019096795 A JP2019096795 A JP 2019096795A JP 2020189319 A JP2020189319 A JP 2020189319A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 91
- 239000010959 steel Substances 0.000 title claims abstract description 91
- 238000003466 welding Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
Description
本発明は、鋼製壁の溶接方法に関する。 The present invention relates to a method for welding a steel wall.
アーク溶接ロボットによって、コラム部材と仕口パネル部材との外周溶接部を溶接する際に、コラム部材及び仕口パネル部材を回転させる鉄骨柱の溶接方法が知られている（例えば、特許文献１参照）。 A method of welding a steel frame column that rotates a column member and a joint panel member when welding an outer peripheral welded portion between the column member and the joint panel member by an arc welding robot is known (see, for example, Patent Document 1). ).
ところで、作業者が溶接部を溶接する際には、品質や作業性等の観点から下向き溶接が望ましい。 By the way, when an operator welds a welded portion, downward welding is desirable from the viewpoint of quality and workability.
しかしながら、例えば、鋼製壁において、向きが異なる複数の溶接部が存在する場合、各溶接部を下向き溶接するためには、溶接部毎に鋼製壁の向きを変える必要があるため、溶接作業に手間がかかる。 However, for example, when there are a plurality of welded portions having different orientations on a steel wall, it is necessary to change the orientation of the steel wall for each welded portion in order to weld each welded portion downward. It takes time and effort.
本発明は、上記の事実を考慮し、向きが異なる複数の溶接部を容易に下向き溶接することができる鋼製壁の溶接方法を提供することを目的とする。 In consideration of the above facts, an object of the present invention is to provide a method for welding a steel wall capable of easily downward welding a plurality of welded portions having different orientations.
請求項１に記載の鋼製壁の溶接方法は、向きが異なる複数の溶接部を有する鋼製壁の溶接方法であって、前記鋼製壁の面内方向に延びる回転軸によって該鋼製壁を支持した状態で、前記溶接部を溶接する。 The method for welding a steel wall according to claim 1 is a method for welding a steel wall having a plurality of welded portions having different orientations, and the steel wall is formed by a rotating shaft extending in the in-plane direction of the steel wall. The welded portion is welded while supporting.
請求項１に係る鋼製壁の溶接方法によれば、複数の溶接部の向きに応じて、回転軸を中心として鋼製壁を回転させることにより、複数の溶接部を容易に下向き溶接することができる。 According to the method for welding a steel wall according to claim 1, the plurality of welded portions are easily welded downward by rotating the steel wall around a rotation axis according to the orientation of the plurality of welded portions. Can be done.
請求項２に記載の鋼製壁の溶接方法は、請求項１に記載の鋼製壁の溶接方法において、前記回転軸を中心として前記鋼製壁を回転させ、前記溶接部を上側に向けた状態で該溶接部を溶接する。 The method for welding a steel wall according to claim 2 is the method for welding a steel wall according to claim 1, wherein the steel wall is rotated about the rotation axis and the welded portion is directed upward. The welded portion is welded in this state.
請求項２に係る鋼製壁の溶接方法によれば、回転軸を中心として鋼製壁を回転させ、溶接部を上側に向けた状態で溶接部を溶接する。これにより、上側を向いた溶接部を容易に下向き溶接することができる。 According to the method for welding a steel wall according to claim 2, the steel wall is rotated around a rotation axis, and the welded portion is welded with the welded portion facing upward. As a result, the welded portion facing upward can be easily welded downward.
請求項３に記載の鋼製壁の溶接方法は、請求項１又は請求項２に記載の鋼製壁の溶接方法において、前記回転軸は、前記鋼製壁に着脱可能に取り付けられる。 The method for welding a steel wall according to claim 3 is the method for welding a steel wall according to claim 1 or 2, wherein the rotating shaft is detachably attached to the steel wall.
請求項３に係る鋼製壁の溶接方法によれば、回転軸は、鋼製壁に着脱可能に取り付けられる。これにより、複数の溶接部の溶接後に、鋼製壁から回転軸を容易に取り外すことができる。 According to the method for welding a steel wall according to claim 3, the rotating shaft is detachably attached to the steel wall. As a result, the rotating shaft can be easily removed from the steel wall after welding the plurality of welded portions.
以上説明したように、本発明に係る鋼製壁の溶接方法によれば、向きが異なる複数の溶接部を、容易に下向き溶接することができる。 As described above, according to the method for welding a steel wall according to the present invention, a plurality of welded portions having different orientations can be easily welded downward.
以下、図面を参照しながら、一実施形態に係る鋼製壁の溶接方法について説明する。 Hereinafter, a method for welding a steel wall according to an embodiment will be described with reference to the drawings.
（鋼製壁）
先ず、本実施形態に係る鋼製壁２０の構成について説明する。図１及び図２には、本実施形態に係る鋼製壁２０が示されている。鋼製壁２０は、例えば、耐力壁や耐震壁とされている。この鋼製壁２０は、架構１０の構面内に配置されている。なお、架構１０は、一対の柱１２と、一対の柱１２に架設された上下の梁１４とを有している。
(Steel wall)
First, the configuration of the steel wall 20 according to the present embodiment will be described. 1 and 2 show a steel wall 20 according to this embodiment. The steel wall 20 is, for example, a bearing wall or a seismic wall. The steel wall 20 is arranged in the frame surface of the frame 10. The frame 10 has a pair of columns 12 and upper and lower beams 14 erected on the pair of columns 12.
鋼製壁２０は、格子状体２４と、複数の板状部材３２とを有している。格子状体２４は、複数の縦材２６及び横材２８を有している。複数の縦材２６及び横材２８は、鋼板等の金属板によって形成されている。これらの縦材２６及び横材２８は、溶接（隅肉溶接）によって格子状に接合されている。 The steel wall 20 has a grid-like body 24 and a plurality of plate-like members 32. The lattice-shaped body 24 has a plurality of vertical members 26 and horizontal members 28. The plurality of vertical members 26 and horizontal members 28 are formed of a metal plate such as a steel plate. These vertical members 26 and horizontal members 28 are joined in a grid pattern by welding (fillet welding).
格子状体２４は、縦材２６及び横材２８によって囲まれた複数の開口部３０を有している。複数の開口部３０は、矩形状に形成されている。これらの開口部３０の一部には、板状部材３２が設けられている。 The lattice-shaped body 24 has a plurality of openings 30 surrounded by the vertical member 26 and the horizontal member 28. The plurality of openings 30 are formed in a rectangular shape. A plate-shaped member 32 is provided in a part of these openings 30.
複数の板状部材３２は、鋼板等の金属板によって、矩形の板状に形成されている。各板状部材３２は、開口部３０内に配置されており、その外周部が格子状体２４に溶接（隅肉溶接）によって接合されている。これらの板状部材３２によって、複数の開口部３０の一部が塞がれている。 The plurality of plate-shaped members 32 are formed in a rectangular plate shape by a metal plate such as a steel plate. Each plate-shaped member 32 is arranged in the opening 30, and the outer peripheral portion thereof is joined to the lattice-shaped body 24 by welding (fillet welding). A part of the plurality of openings 30 is closed by these plate-shaped members 32.
複数の板状部材３２は、市松模様状（千鳥状）に配列されている。つまり、格子状体２４では、板状部材３２が設けられた開口部３０と、板状部材３２が設けられていない開口部３０とが、格子状体２４の横幅方向（矢印Ｗ方向）及び高さ方向（矢印Ｈ方向）に交互に配列されている。なお、板状部材３２の数や配置は、適宜変更である。 The plurality of plate-shaped members 32 are arranged in a checkered pattern (staggered shape). That is, in the lattice-shaped body 24, the opening 30 in which the plate-shaped member 32 is provided and the opening 30 in which the plate-shaped member 32 is not provided are located in the lateral width direction (arrow W direction) and the height of the lattice-shaped body 24. They are arranged alternately in the vertical direction (arrow H direction). The number and arrangement of the plate-shaped members 32 are appropriately changed.
格子状体２４の外周面には、複数の壁側フランジ３４が設けられている。複数の壁側フランジ３４は、架構１０の内周面に設けられた複数の架構側フランジ１６に重ねられた状態で、それぞれボルト接合されている。これにより、鋼製壁２０が架構１０に接合されている。 A plurality of wall-side flanges 34 are provided on the outer peripheral surface of the lattice-shaped body 24. The plurality of wall-side flanges 34 are bolted to each other in a state of being overlapped with the plurality of frame-side flanges 16 provided on the inner peripheral surface of the frame 10. As a result, the steel wall 20 is joined to the frame 10.
なお、架構１０に対する鋼製壁２０の接合構造は、ボルト接合に限らず、例えば、溶接接合でもよい。 The joining structure of the steel wall 20 to the frame 10 is not limited to bolt joining, and may be, for example, welding joining.
（鋼製壁の溶接方法）
次に、鋼製壁の溶接方法の一例について説明する。
(Welding method for steel walls)
Next, an example of a method for welding a steel wall will be described.
図３に示されるように、鋼製壁２０は、運搬性や揚重性等の観点から、横幅方向に分割された複数（本実施形態では、３つ）の分割壁体２２を有している。隣り合う分割壁体（分割ピース）２２は、例えば、現場において溶接される。これにより、鋼製壁２０が形成される。 As shown in FIG. 3, the steel wall 20 has a plurality of (three in the present embodiment) divided wall bodies 22 divided in the width direction from the viewpoint of transportability, lifting property, and the like. There is. Adjacent split wall bodies (split pieces) 22 are welded, for example, in the field. As a result, the steel wall 20 is formed.
ここで、図４に示されるように、隣り合う分割壁体２２の接合部には、向きが異なる複数の溶接部が含まれている。具体的には、隣り合う分割壁体２２のうち、一方の分割壁体２２の端部（以下、「接合端部」という）には縦材２６が設けられ、他方の分割壁体２２の端部（以下、「接合端部」という）には、縦材が設けられていない。 Here, as shown in FIG. 4, the joint portions of the adjacent split wall bodies 22 include a plurality of welded portions having different orientations. Specifically, of the adjacent divided wall bodies 22, a vertical member 26 is provided at the end of one of the divided wall bodies 22 (hereinafter, referred to as “joint end portion”), and the end of the other divided wall body 22. No vertical member is provided in the portion (hereinafter referred to as “joint end portion”).
他方の分割壁体２２の接合端部を形成する横材２８の端部は、一方の分割壁体２２の縦材２６の表面２６Ｓに突き当てられた状態で、その両面（表裏面）２８Ａ，２８Ｂが鋼製壁２０の高さ方向（矢印Ｈ方向）の両側から縦材２６の表面２６Ｓに溶接（隅肉溶接）される。また、他方の分割壁体２２の接合端部を形成する板状部材３２の端部は、一方の分割壁体２２の縦材２６の表面２６Ｓに突き当てられた状態で、その両面（表裏面）３２Ａ，３２Ｂが鋼製壁２０の壁厚方向（矢印Ｔ方向）の両側から溶接（隅肉溶接）される。 The ends of the cross member 28 forming the joint end of the other divided wall 22 are abutted against the surface 26S of the vertical member 26 of the one divided wall 22, and both sides (front and back) 28A, 28B is welded (fillet welding) to the surface 26S of the vertical member 26 from both sides of the steel wall 20 in the height direction (arrow H direction). Further, the end portion of the plate-shaped member 32 forming the joint end portion of the other split wall body 22 is abutted against the surface 26S of the vertical member 26 of the other split wall body 22, and both sides (front and back surfaces) thereof. ) 32A and 32B are welded (fillet welding) from both sides of the steel wall 20 in the wall thickness direction (arrow T direction).
このように隣り合う分割壁体２２の接合部では、縦材２６の表面２６Ｓに対する横材２８の両面２８Ａ，２８Ｂ、及び板状部材３２の両面３２Ａ，３２Ｂの溶接方向、すなわち溶接部の向きが異なっている。そのため、以下では、隣り合う分割壁体２２の接合部の溶接方法を例に、本実施形態に係る鋼製壁の溶接方法について説明する。 In the joint portion of the divided wall bodies 22 adjacent to each other in this way, the welding direction of both sides 28A and 28B of the cross member 28 and both sides 32A and 32B of the plate-shaped member 32 with respect to the surface 26S of the vertical member 26, that is, the direction of the welded portion is It's different. Therefore, in the following, the welding method of the steel wall according to the present embodiment will be described by taking as an example the welding method of the joint portion of the adjacent divided wall bodies 22.
先ず、図５に示されるように、平台車９０の上に、複数の分割壁体２２を寝かした状態で位置決めし、隣り合う分割壁体２２の外周部の横材２８同士を仮溶接（仮組溶接）する。これにより、仮組み状態の鋼製壁２０を形成する。 First, as shown in FIG. 5, a plurality of divided wall bodies 22 are positioned on the flat trolley 90 in a laid state, and the cross members 28 on the outer peripheral portion of the adjacent divided wall bodies 22 are temporarily welded (temporarily). (Assembly welding). As a result, the steel wall 20 in the temporarily assembled state is formed.
次に、仮組み状態の鋼製壁２０の横幅方向の両端部に、回転軸４０をそれぞれ着脱可能に取り付ける。具体的には、図６及び図７に示されるように、回転軸４０は、軸部４２と、一対のフランジ部４４，４６とを有している。軸部４２は、円筒状に形成されている。この軸部４２の軸方向の両端部には、一対のフランジ部４４，４６が設けられている。 Next, the rotating shafts 40 are detachably attached to both ends of the temporarily assembled steel wall 20 in the lateral width direction. Specifically, as shown in FIGS. 6 and 7, the rotating shaft 40 has a shaft portion 42 and a pair of flange portions 44 and 46. The shaft portion 42 is formed in a cylindrical shape. A pair of flange portions 44, 46 are provided at both ends of the shaft portion 42 in the axial direction.
一対のフランジ部４４，４６は、円盤状に形成されている。この一対のフランジ部４４，４６は、軸部４２の軸方向の両端部から鍔状に張り出している。また、一対のフランジ部４４，４６のうち、一方のフランジ部４６には、ブラケット５０が設けられている。 The pair of flange portions 44, 46 are formed in a disk shape. The pair of flange portions 44, 46 project in a flange shape from both ends of the shaft portion 42 in the axial direction. Further, a bracket 50 is provided on one of the flange portions 44 and 46 of the pair of flange portions 44 and 46.
図７に示されるように、ブラケット５０は、互いに対向する一対の取付プレート５２と、一対の取付プレート５２を補強する複数の補強リブ５４とを有している。この一対の取付プレート５２の間には、鋼製壁２０の外周面に設けられた壁側フランジ３４が挿入される。この状態で、一対の取付プレート５２及び壁側フランジ３４を、ボルト５６及びナット５８によって接合する。これにより、鋼製壁２０の横幅方向の端部に、鋼製壁２０の面内方向に延びる回転軸４０が着脱可能に取り付けられる。 As shown in FIG. 7, the bracket 50 has a pair of mounting plates 52 facing each other and a plurality of reinforcing ribs 54 for reinforcing the pair of mounting plates 52. A wall-side flange 34 provided on the outer peripheral surface of the steel wall 20 is inserted between the pair of mounting plates 52. In this state, the pair of mounting plates 52 and the wall side flange 34 are joined by bolts 56 and nuts 58. As a result, the rotating shaft 40 extending in the in-plane direction of the steel wall 20 is detachably attached to the end portion of the steel wall 20 in the lateral width direction.
次に、図５及び図８に示されるように、梁等の躯体１８に取り付けられたチェーンブロック９２によって仮組み状態の鋼製壁２０を吊り上げ、図９に示されるように、鋼製壁２０に取り付けられた一対の回転軸４０を一対の回転架台６０にそれぞれ支持させる。 Next, as shown in FIGS. 5 and 8, the steel wall 20 in the temporarily assembled state is lifted by the chain block 92 attached to the frame 18 such as a beam, and as shown in FIG. 9, the steel wall 20 is lifted. The pair of rotating shafts 40 attached to the above are supported by the pair of rotating pedestals 60, respectively.
一対の回転架台６０は、仮組み状態の鋼製壁２０の横幅方向の両側に配置される。各回転架台６０は、架台本体部６２と、軸支持部８０とを有している。架台本体部６２は、一対の支柱６４と、一対の支柱６４を連結する上側連結材６６及び下側連結材６８と、一対の支柱６４の転倒を防止する複数の転倒防止材７０とを有している。 The pair of rotary mounts 60 are arranged on both sides of the temporarily assembled steel wall 20 in the lateral width direction. Each rotary pedestal 60 has a pedestal main body portion 62 and a shaft support portion 80. The gantry main body 62 has a pair of columns 64, an upper connecting member 66 and a lower connecting member 68 that connect the pair of columns 64, and a plurality of fall prevention members 70 that prevent the pair of columns 64 from tipping over. ing.
図６及び図７に示されるように、架台本体部６２の上側連結材６６には、回転軸４０の軸部４２を回転可能に支持する軸支持部８０が設けられている。軸支持部８０は、軸受けベース８２と、一対のストッパ８４とを有している。 As shown in FIGS. 6 and 7, the upper connecting member 66 of the gantry main body 62 is provided with a shaft support portion 80 that rotatably supports the shaft portion 42 of the rotating shaft 40. The shaft support portion 80 has a bearing base 82 and a pair of stoppers 84.
軸受けベース８２は、板状に形成されている。また、軸受けベース８２は、上側連結材６６の長手方向の中央部の上面６６Ｕに重ねられた状態で溶接等によって固定されている。この軸受けベース８２によって、上側連結材６６の長手方向の中央部が補強されている。 The bearing base 82 is formed in a plate shape. Further, the bearing base 82 is fixed by welding or the like in a state of being overlapped with the upper surface 66U of the central portion in the longitudinal direction of the upper connecting member 66. The bearing base 82 reinforces the central portion of the upper connecting member 66 in the longitudinal direction.
軸受けベース８２の上には、回転軸４０の軸部４２が載置される。この際、図６に示されるように、回転軸４０の一対のフランジ部４４，４６の間に、軸受けベース８２及び上側連結材６６が配置される。これにより、一対のフランジ部４４，４６によって、軸受けベース８２から軸部４２の脱落が抑制される。 The shaft portion 42 of the rotating shaft 40 is placed on the bearing base 82. At this time, as shown in FIG. 6, the bearing base 82 and the upper connecting member 66 are arranged between the pair of flange portions 44 and 46 of the rotating shaft 40. As a result, the pair of flange portions 44 and 46 suppresses the shaft portion 42 from falling off from the bearing base 82.
図７及び図９に示されるように、軸受けベース８２に対する上側連結材６６の長手方向の両側には、一対のストッパ８４が配置されている。一対のストッパ８４は、略三角形の板状に形成されている。また、一対のストッパ８４は、上側連結材６６の上面６６Ｕに立てられた状態で溶接等によって固定されている。さらに、一対のストッパ８４の間に、回転軸４０の軸部４２が配置される。この一対のストッパ８４によって、軸受けベース８２から軸部４２の脱落が抑制される。 As shown in FIGS. 7 and 9, a pair of stoppers 84 are arranged on both sides of the upper connecting member 66 with respect to the bearing base 82 in the longitudinal direction. The pair of stoppers 84 are formed in a substantially triangular plate shape. Further, the pair of stoppers 84 are fixed by welding or the like while standing on the upper surface 66U of the upper connecting member 66. Further, a shaft portion 42 of the rotating shaft 40 is arranged between the pair of stoppers 84. The pair of stoppers 84 suppresses the shaft portion 42 from falling off from the bearing base 82.
このように一対の回転架台６０によって支持された仮組み状態の鋼製壁２０を、一対の回転軸４０を中心として回転させ、隣り合う分割壁体２２の接合端部を溶接（本溶接）する。 The steel walls 20 in the temporarily assembled state supported by the pair of rotating pedestals 60 are rotated around the pair of rotating shafts 40, and the joint ends of the adjacent divided wall bodies 22 are welded (main welded). ..
具体的には、例えば、図３に示されるように、仮組み状態の鋼製壁２０を立てた状態で図示しないチェーンブロック等によって固定する。これにより作業者は、一方の分割壁体２２の縦材２６の表面２６Ｓに対し、他方の分割壁体２２の横材２８の両面２８Ａ，２８Ｂ（図４参照）の一方を下向き溶接することができる。 Specifically, for example, as shown in FIG. 3, the steel wall 20 in the temporarily assembled state is fixed in an upright state by a chain block or the like (not shown). As a result, the operator can weld one of both sides 28A and 28B (see FIG. 4) of the cross member 28 of the other divided wall body 22 downward to the surface 26S of the vertical member 26 of the one divided wall body 22. it can.
また、図３において、仮組み状態の鋼製壁２０の上下を反転させることにより、作業者は、一方の分割壁体２２の縦材２６の表面２６Ｓに対し、他方の分割壁体２２の横材２８の両面２８Ａ，２８Ｂ（図４参照）の他方を下向き溶接することができる。 Further, in FIG. 3, by turning the steel wall 20 in the temporarily assembled state upside down, the operator can view the surface 26S of the vertical member 26 of one of the split wall bodies 22 and the side of the other split wall body 22. The other side of both sides 28A and 28B (see FIG. 4) of the material 28 can be welded downward.
また、例えば、図１０に示されるように、仮組み状態の鋼製壁２０を横に寝かした状態で、サポート８６等によって固定する。これにより、作業者は、仮組み状態の鋼製壁２０の上から、一方の分割壁体２２の縦材２６の表面２６Ｓに対し、他方の分割壁体２２の板状部材３２の両面３２Ａ，３２Ｂ（図４参照）の一方を下向き溶接することができる。 Further, for example, as shown in FIG. 10, the steel wall 20 in the temporarily assembled state is laid down sideways and fixed by a support 86 or the like. As a result, the operator can view the surface 26S of the vertical member 26 of one of the split wall bodies 22 and the double-sided 32A of the plate-shaped member 32 of the other split wall body 22 from above the steel wall 20 in the temporarily assembled state. One of 32B (see FIG. 4) can be welded downward.
また、図１０において、仮組み状態の鋼製壁２０の表裏を反転させることにより、作業者は、仮組み状態の鋼製壁２０の上から、一方の分割壁体２２の縦材２６の表面２６Ｓに対し、他方の分割壁体２２の板状部材３２の両面３２Ａ，３２Ｂの他方を下向き溶接することができる。 Further, in FIG. 10, by inverting the front and back of the steel wall 20 in the temporarily assembled state, the operator can view the surface of the vertical member 26 of one of the split wall bodies 22 from above the steel wall 20 in the temporarily assembled state. The other side of both sides 32A and 32B of the plate-shaped member 32 of the other divided wall body 22 can be welded downward to 26S.
以上の手順を繰り返し、隣り合う分割壁体２２の接合部を溶接（本溶接）することにより、鋼製壁２０が形成される。その後、鋼製壁２０は、図１及び図２に示されるように、架構１０に構面内に設置される。 The steel wall 20 is formed by repeating the above procedure and welding (main welding) the joints of the adjacent divided wall bodies 22. After that, the steel wall 20 is installed in the frame 10 on the frame 10 as shown in FIGS. 1 and 2.
（効果）
次に、本実施形態の効果について説明する。
(effect)
Next, the effect of this embodiment will be described.
本実施形態では、仮組み状態の鋼製壁２０に取り付けられた一対の回転軸４０を、一対の回転架台６０によって回転可能に支持した状態で、隣り合う分割壁体２２の溶接部を溶接（本溶接）する。そのため、隣り合う分割壁体２２の溶接部の向きに応じて、仮組み状態の鋼製壁２０を一対の回転軸４０を中心として回転させることにより、向きが異なる複数の溶接部を下向き溶接することができる。 In the present embodiment, the welded portions of the adjacent split wall bodies 22 are welded (in a state where the pair of rotating shafts 40 attached to the temporarily assembled steel wall 20 are rotatably supported by the pair of rotating pedestals 60). Main welding). Therefore, by rotating the steel wall 20 in the temporarily assembled state around the pair of rotating shafts 40 according to the orientation of the welded portions of the adjacent split wall bodies 22, a plurality of welded portions having different orientations are welded downward. be able to.
より具体的には、一対の回転軸４０を中心として仮組み状態の鋼製壁２０を回転させ、他方の分割壁体２２の接合端部を形成する横材２８の両面２８Ａ，２８Ｂ、及び板状部材３２の両面３２Ａ，３２Ｂの何れかを上側に向けた状態で、一方の分割壁体２２の接合端部を形成する縦材２６の表面２６Ｓに溶接する。これにより、作業者は、横材２８の両面２８Ａ，２８Ｂ、及び板状部材３２の両面３２Ａ，３２Ｂを、縦材２６の表面２６Ｓに容易に下向き溶接することができる。したがって、隣り合う分割壁体２２の接合部の溶接品質、及び意匠性を高めることができる。 More specifically, both sides 28A, 28B, and plates of the cross member 28 forming the joint end portion of the other divided wall body 22 by rotating the steel wall 20 in the temporarily assembled state around the pair of rotating shafts 40. With either side surface 32A or 32B of the shape member 32 facing upward, welding is performed on the surface 26S of the vertical member 26 forming the joint end portion of one of the divided wall bodies 22. As a result, the operator can easily weld both sides 28A and 28B of the cross member 28 and both sides 32A and 32B of the plate-shaped member 32 downward to the surface 26S of the vertical member 26. Therefore, the welding quality and design of the joints of the adjacent split wall bodies 22 can be improved.
ここで、隣り合う分割壁体２２の他の接合構造（比較例）として、隣り合う分割壁体２２の接合端部に縦材２６をそれぞれ設け、これらの縦材２６の表面２６Ｓを重ね合せた状態で溶接やボルト接合することが考えられる。しかしながら、この場合、隣り合う分割壁体２２の接合部において２枚の縦材２６が重なり、他の部位よりも縦材２６が厚くなるため、意匠性が低下する可能性がある。 Here, as another joint structure (comparative example) of the adjacent split wall bodies 22, vertical members 26 are provided at the joint ends of the adjacent split wall bodies 22, and the surfaces 26S of the vertical members 26 are overlapped with each other. Welding or bolt joining can be considered in this state. However, in this case, the two vertical members 26 overlap at the joint portion of the adjacent split wall bodies 22, and the vertical members 26 are thicker than the other portions, so that the design may be deteriorated.
これに対して本実施形態では、隣り合う分割壁体２２の接合部において２枚の縦材２６を重ね合せない。そのため、隣り合う分割壁体２２の接合部の縦材２６の厚みが、他の部位の縦材２６よりも厚くならないため、意匠性が向上する。 On the other hand, in the present embodiment, the two vertical members 26 are not overlapped at the joint portion of the adjacent divided wall bodies 22. Therefore, the thickness of the vertical member 26 at the joint portion of the adjacent split wall bodies 22 is not thicker than that of the vertical member 26 at the other portion, so that the design is improved.
さらに、本実施形態では、一対の回転軸４０は、鋼製壁２０に着脱可能に取り付けられる。これにより、複数の溶接部の溶接後に、鋼製壁２０から一対の回転軸４０を容易に取り外すことができる。 Further, in the present embodiment, the pair of rotating shafts 40 are detachably attached to the steel wall 20. As a result, the pair of rotating shafts 40 can be easily removed from the steel wall 20 after welding the plurality of welded portions.
（変形例）
次に、上記実施形態の変形例について説明する。
(Modification example)
Next, a modified example of the above embodiment will be described.
上記実施形態に係る鋼製壁の溶接方法は、隣り合う分割壁体２２の接合部に適用されている。しかしながら、上記実施形態に係る鋼製壁の溶接方法は、例えば、縦材２６と横材２８との溶接部に適用してもよいし、格子状体２４に対する板状部材３２の溶接部に適用してもよい。 The method for welding a steel wall according to the above embodiment is applied to a joint portion of adjacent split wall bodies 22. However, the steel wall welding method according to the above embodiment may be applied to, for example, the welded portion between the vertical member 26 and the horizontal member 28, or may be applied to the welded portion of the plate-shaped member 32 with respect to the lattice-shaped body 24. You may.
また、上記実施形態では、鋼製壁２０が複数の分割壁体２２に分割されている。しかしながら、鋼製壁は、複数の分割壁体に分割されなくてもよい。 Further, in the above embodiment, the steel wall 20 is divided into a plurality of divided wall bodies 22. However, the steel wall does not have to be divided into a plurality of divided wall bodies.
また、上記実施形態では、鋼製壁２０に一対の回転軸４０が着脱可能に取り付けられる。しかしながら、一対の回転軸４０は、鋼製壁２０に一体（着脱不能）に設けられてもよい。 Further, in the above embodiment, the pair of rotating shafts 40 are detachably attached to the steel wall 20. However, the pair of rotating shafts 40 may be provided integrally (non-detachable) with the steel wall 20.
また、上記実施形態における回転架台６０、及び回転軸４０の構成は、適宜変更可能である。 Further, the configurations of the rotary stand 60 and the rotary shaft 40 in the above embodiment can be changed as appropriate.
以上、本発明の一実施形態について説明したが、本発明はこうした実施形態に限定されるものでなく、一実施形態及び各種の変形例を適宜組み合わせて用いてもよいし、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。 Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention is described. Of course, it can be carried out in various modes as long as it does not deviate.
２０ 鋼製壁
４０ 回転軸
20 Steel wall 40 Rotating shaft
Claims (3)
前記鋼製壁の面内方向に延びる回転軸によって該鋼製壁を支持した状態で、前記溶接部を溶接する、
鋼製壁の溶接方法。 A method of welding a steel wall having a plurality of welds having different orientations.
The welded portion is welded while the steel wall is supported by a rotating shaft extending in the in-plane direction of the steel wall.
Welding method for steel walls.
請求項１に記載の鋼製壁の溶接方法。 The steel wall is rotated around the rotation axis, and the welded portion is welded with the welded portion facing upward.
The method for welding a steel wall according to claim 1.
請求項１又は請求項２に記載の鋼製壁の溶接方法。 The rotating shaft is detachably attached to the steel wall.
The method for welding a steel wall according to claim 1 or 2.
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| JPS5124538A (en) * | 1974-08-23 | 1976-02-27 | Nittetsu Kinzoku Kogyo Kk | METARUFUOOMUKUMITATEYOSETSUHOHO |
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| JPS6182790U (en) * | 1984-10-30 | 1986-05-31 | ||
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